What is outdoor food? Mainly refers to those foods? thank you

Outdoor food is some convenient and nutritious food prepared for most outdoor activities. Like mountaineering, self-help or self-driving, adventure, adventure, hiking, camping, wild fishing and so on. It's all outdoor activities.

The main foods are compressed biscuits, dried meat, energy bars, chocolate, canned meat, canned fruit, dehydrated vegetables, self-heated food, vacuum-packed beans, instant noodles, sausages, pickles in high-salt bags, fruit candy, glucose and so on.

Generally, you can bring some fresh vegetables, eggs and so on. Two or three days, some rice, dried noodles, fungus and other longer flowers.